SEA 7157, Operator'S Manual, Page: 12 / 49

GENERAL OPERATIONS
7
UP
CHANNEL 16 KEY
Channel 16 is used as a calling channel and as
an international emergency channel. Channel
16 should be monitored when the radio is not
being used for other communications.
Do not use this channel for ordinary communications.
Pressing the key will set the radio to full output power and abort all
other functions. Pressing the key a second time will switch the radio to the
programmed priority channel. When channel 16 is programmed to be the
priority channel (factory default), switching between channel 16 and the priority
channel will produce no noticeable change.
OPERATING THE TRANSMITTER
Keying the microphone push-to-talk button will
switch the transmitter circuits on, indicated by
the ‘TX’ indicator appearing on the display.
Speak in a normal voice with your lips about
one eighth of an inch away from the
microphone. Do not shout. Shouting reduces
intelligibility.
If regulations prohibit 25 watts of power on a given channel, the power level
cannot be changed. No power level selection is allowed on receive only
channels (e.g. WX channels).
US channels 13, 67, and 77 can be operated at full power by pressing the
key during transmission. Releasing the key will return the radio to 1 watt
operation.
A time out timer is provided to prevent continuous transmissions for periods
greater than 5 minutes. In the event that the radio will be needed to transmit for
periods longer than 5 minutes, it will be necessary to release the PTT briefly
before the 5 minute timer expires.
16
CALL DISTRS
2:46 47° 47N 122° 19W
16 DX
25W US
PRI
SQL
Instant recall of CH 16 and Priority channel
PUBLIC CORR
2:46 47° 47N 122° 19W
26 TX
25W US
SQL
Display showing transmit condition